When nano is built with --enable-tiny, the Ctrl-G (Get Help) shortcut is disabled. However, pressing it at certain statusbar prompts produces inconsistent behavior.

At the Ctrl-O (Write Out File) and Ctrl-R (Insert File) prompts, Ctrl-G does nothing, and you remain at the prompt. However, at the Ctrl-W (Where Is) and Ctrl-_ (Go To Line) prompts, Ctrl-G kicks you out of the prompt instead.